Can I convert JSON to TypeScript interfaces?

Yes. Paste any valid JSON and click the ‘→ TypeScript’ button. The tool generates corresponding TypeScript type definitions with proper nullable handling for optional fields.

Does DiffMergy support JSON Path queries?

Yes. Enter a JSON Path expression such as data.items[0].name in the query field and click Query to extract specific values from large JSON structures.

DiffMergy - JSON Tools — Format, Validate, Minify and Convert

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Why Use DiffMergy’s JSON Tools?

DiffMergy’s JSON Tools suite handles every JSON workflow you need: formatting, validation, minification, TypeScript interface generation, JSON Path querying, CSV conversion, sorting, flattening, and diffing. All operations are instantaneous and run entirely in your browser.

Whether you are debugging an API response, generating TypeScript types from sample data, or comparing two JSON payloads, this all-in-one toolkit eliminates context switching with zero data leaving your machine.

100% Private — No Server Upload

All processing happens entirely in your browser using Web Workers and modern browser APIs. Your sensitive source code, credentials, and files never leave your device — no servers, no databases, no tracking, no sign-up required.

Fast & Reliable

Built with vanilla TypeScript and a lightweight custom engine, DiffMergy delivers sub-millisecond processing with zero network latency. The entire toolkit works on any modern browser across all operating systems, with no installation or setup needed.

Why Use DiffMergy’s JSON Tools?

100% Private — No Server Upload

Fast & Reliable

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